I missed it because such a thing as all the saints living in heaven is not in the Bible.
They all 'sleep' until he Day of Judgement, when God sits on the Great White Throne, after the Millennium. Proved by
Daniel 12:13
Isaiah seems to say that the righteous dead are risen before the Lord comes out to punish the earth and are hidden in their rooms just like Yeshua told us He was preparing places for us. That would be before the Great Tribulation which is the last 3.5 years at least. But it could be sooner than that. Isaiah only says that it will happen before, just not how long before.
Isaiah 26:19-21 Your dead will live;
Their corpses will rise.
You who lie in the dust, awake and shout for joy,
For your dew is as the dew of the dawn,
And the earth will give birth to the departed spirits.
20
Come, my people, enter into your rooms
And close your doors behind you;
Hide for a little while
Until indignation runs its course.
21 For behold, the Lord
is about to come out from His place
To punish the inhabitants of the earth for their iniquity;
And the earth will reveal her bloodshed
And will no longer cover her slain.
John 14:1-3 Do not let your heart be troubled; believe in God, believe also in Me. 2
In My Father’s house are many dwelling places; if it were not so, I would have told you; for I go to prepare a place for you. 3 If I go and prepare a place for you, I will come again and receive you to Myself, that where I am, there you may be also.
1 Thessalonians 4:16-18 For the Lord Himself will descend from heaven with a shout, with the voice of an archangel, and with the trumpet of God. And
the dead in Christ will rise first. 17 Then we who are alive and remain shall be
caught up together with them in the clouds to
meet the Lord in the air. And thus we shall always be with the Lord. 18 Therefore comfort one another with these words.
Seems pretty clear cut to me. But then, I generally take the Occam's Razor (Law of Parsimony, but also similar to the Golden Rule of Hermeneutics) approach to passages before getting all bogged down in esoteric, hidden spiritual meanings with no objective foundation which can lead to a morass of convoluted ideas.
Now, to be fair, I would agree with you if you were talking about only the
unredeemed dead. If you were talking about them you would be correct about them not being risen until the GWT. For the righteous dead, they do not participate in the GWT and there is no need to check the books. It is just like the Passover in Egypt. The redeemed (both dead and living) sins have been removed as far as the east is from the west. Their justification is assured thru the blood of Yeshua. All that YHVH sees when He looks at those who are redeemed is His Son. Our judgement is at the bema judgement that is for rewards based on faithful service. Not judgement of our justification, for we have already passed from death to life when we trust in Yeshua.